chromecast/media/cma/pipeline/media_pipeline.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_H_
   6 #define CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/macros.h"
  10 #include "base/time/time.h"
  11 #include "media/base/pipeline_status.h"
  12
  13 namespace media {
  14 class AudioDecoderConfig;
  15 class BrowserCdm;
  16 class VideoDecoderConfig;
  17 }
  18
  19 namespace chromecast {
  20 namespace media {
  21 class AudioPipeline;
  22 class CodedFrameProvider;
  23 struct MediaPipelineClient;
  24 class VideoPipeline;
  25
  26 class MediaPipeline {
  27  public:
  28   MediaPipeline() {}
  29   virtual ~MediaPipeline() {}
  30
  31   // Set the media pipeline client.
  32   virtual void SetClient(const MediaPipelineClient& client) = 0;
  33
  34   // Set the CDM to use for decryption.
  35   // The CDM is refered by its id.
  36   virtual void SetCdm(int cdm_id) = 0;
  37
  38   // Return the audio/video pipeline owned by the MediaPipeline.
  39   virtual AudioPipeline* GetAudioPipeline() const = 0;
  40   virtual VideoPipeline* GetVideoPipeline() const = 0;
  41
  42   // Create an audio/video pipeline.
  43   // MediaPipeline owns the resulting audio/video pipeline.
  44   // Only one audio and one video pipeline can be created.
  45   virtual void InitializeAudio(
  46       const ::media::AudioDecoderConfig& config,
  47       scoped_ptr<CodedFrameProvider> frame_provider,
  48       const ::media::PipelineStatusCB& status_cb) = 0;
  49   virtual void InitializeVideo(
  50       const std::vector<::media::VideoDecoderConfig>& configs,
  51       scoped_ptr<CodedFrameProvider> frame_provider,
  52       const ::media::PipelineStatusCB& status_cb) = 0;
  53
  54   // Control the media pipeline state machine.
  55   virtual void StartPlayingFrom(base::TimeDelta time) = 0;
  56   virtual void Flush(const ::media::PipelineStatusCB& status_cb) = 0;
  57   virtual void Stop() = 0;
  58
  59   // Set the playback rate.
  60   virtual void SetPlaybackRate(double playback_rate) = 0;
  61
  62  private:
  63   DISALLOW_COPY_AND_ASSIGN(MediaPipeline);
  64 };
  65
  66 }  // namespace media
  67 }  // namespace chromecast
  68
  69 #endif  // CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_H_